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Shindaiwa leaf blower EB8520 loose power every 5 secondes for 5 secondes

The blower run like new, start easy everytime. Good/clean air filter and pre-filter, new spark plug, new air breather(just install). It realy look like it run out of air(plug air filter) or can't pump gas due to no air intake on gas tank. I try with no air filter....same thing.

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  • D. D. Jan 14, 2013

    Hi, I have a Shindaiwa EB8520 backpack blower. The unit starts right up but when I give it full throttle the blower motor begins to die out ,then I give it throttle and the motor picks up speed for a few seconds and then starts to die again. The unit had been running fine before. Any thoughts would be appreciated. Thank you

  • D. D. Jan 14, 2013

    I just check the spark is clean.



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  • 109 Answers

Sounds like you are running it with the choke on - is it spitting black smoke?

Posted on Jan 16, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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SOURCE: mower starts w/ priming but stops after 1-2 seconds. Air filter, gas, oil, spark plug are new

Remove your fuel filter (in the tank usually) and, replace it

Posted on May 20, 2009

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SOURCE: PoulonPro Leaf Blower will not run properly

the carb has a screen in it it needs to be cleaned out the fuel gets crystalized in the carb when it sits for a while. and if the carb has a high and low on the carb meaning 2 screws on the side of the carb .one is for air and the other is for fuel try this first start it up and give it full throttle and turn the high adjustment till it does something screw it in slowley and or out till it is at full rpm sometimes the adjustment screws do vibrate there way out of adjustment .if it dont work then take the carb apart to clean out the screen

Posted on Nov 14, 2008

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SOURCE: Poulan wild thing leaf blower won`t start. Has


Posted on Sep 30, 2009

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SOURCE: Leaf blower will not run good. Only runs at full chike or half ch

If the trimmer is more than 3 to 4 years old, you may want to replace the carburetor parts, (new carb. kit). It also depend on the amount of use.
If it is newer than that, then you will need to disassemble the carb. and spray with carb. cleaner. Make sure that the small screen in the carb. is free of debris. Use a Den tek Brush,
(, to clean the small portals in carb. Reassemble and start.
If you need further assistance, just let me know.


Posted on Jun 12, 2009

SOURCE: echo gas leaf blower bog down

Likely dirt in high speed needle valve(H); could be leaky fuel line(air leaking in), plugged fuel filter, pinched fuel line, etc - anything restricting flow of fuel. Likely, you aggravated an existing problem by cleaning the air filter which would have been providing some choke effect if it were partially plugged.

Posted on Sep 24, 2009

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New spark plug, fresh gas, clean air filter. Wont start.

take the fuel line off at the carburetor. if fuel is coming out then you have a plugged carburetor. take it off and apart. clean it really good with carburetor cleaner and put in a new needle and seat. it should run as good as new.

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Sometimes, you can get positive results by partially disassembling a carburetor and cleaning it with spray carburetor cleaner from Walmart or Auto Parts Supply store. But, if you're going to that much trouble, you might as well replace parts as you go. Over time, rubber seals dry out and plastic reed valves leak by. Recently, my chain saw was acting up. I replaced hoses, filters, spark plug, etc. Even flushed the carburetor with cleaner. Nothing helped. But, once the carburetor was rebuilt, it purred like a kitten. I've experienced the same thing with weed-eaters and other engines, too. Fortunately, 2-cycle engines are not complex and usually easy to fix. Good luck!

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